Clarence l



(Modei.)

0. L. LORRAINE.

RAILWAY AIR BRAKE. No. 246,166. Patented Aug. 23,1881.

WITNESSES: INVENTOR! Zjw L 0/6" "Bi ./LW AU ATTORNEYS.

NITE

FFICE.

PATENT CLARENCE L. LORRAINE, OF ORONOGO, MINNESOTA, ASSIGNOR TO HIMSELF AND MARK W. CLAY, .OF SAME PLACE.

RAILWAY AIR-BRAKE.

SPECIFICATION.forming part of Letters Patent No. 246,166, dated August 23, 1881.

Application filed May 20, 1881. (Model) To all whom it may concern:

Be it known that I, CLARENCE L. LOR- RAINE, ot' Oronoco, in the county of Olmsted and State of Minnesota, have invented certain useful Improvements in Railway Air-Brakes,

of which the following is a specification.

This invention relates to a means for operating car-brakes by means of compressed air.

The invention consists in a novel construcr0 tion, arrangement, and combination of hanging bars, connecting-rods attached to brakebeams, and an expansible and contractible airchamber, as hereinafter more particularly described.

In the accompanying drawings,Figure 1 is a side view, partlyin section, of a car-truck provided with my invention, showing the brakes applied. Fig. 2 is a bottom view of the same.

' Fig. 3 is a side view, showing the position of the hanging bars and air-chamber when the brakes are off.

Similar letters of reference indicate correspondin g parts.

A is the frame of the truck, provided with short bars a a, to which are attached, by means of pivots or hinges, .tbe hanging bars B B These hanging bars are provided with plates b b on their inner sides.

To the lower ends of the hanging bars are 0 attached rods 0 (J which connect said bars with the brake-beams o 0 The rod from the brake-beam 0 is attached to the hanging bar B and the rod O from the brake-beam 0 is attached to the hanging bar B and may be forked or divided into two branches, 0 c, with the hanging bar B working between them.

Suspended in any suitable manner from the bottom of the car or the truck-frame A, and hanging between the plates 1) b, is a bag-like 4o chamber, D, made of any suitable flexible material, provided with a tube or neck, d, which connects with a pipe for conveying compressed air to it from an apparatus of any suitable description. V 5

- When it is desired to apply the brakes the compressed air is admitted into the chamber D through the tube d, causing the chamber to expand and to separate the hanging bars 13 B which, by means of their respective rods c 0 will apply the shoes of the brakes to the wheels and hold them there until the air-pressure is removed.

When the brakes are to be taken off, the airprcssure is withdrawn from the chamber D, when the springs E E force the brake-shoes away from the wheels and draw the hanging bars toward each other.

Having thus fully described my invention,

I claim as new and desire to secure by Let- 6O ters Patent In a car-brake, the combination of the expansible and contractible air-chamber D, the hanging bars B B provided with plates b b, the connecting-rods 0 G the springs E, the brake-beams, and the shoes, all arranged and operating as described.

CLARENCE LEICESTER LORRAINE.

Witnesses:

W. P. HoL'roN, J. A. FULTON. 

